Abstract

Those who call themselves ‘scientific realists’ have been concerned to defend one or more of the following cluster of theses: The scientific enterprise’s primary goal is to discover a theory that correctly describes a mind-independent reality. Scientists believe that many of the central claims of current scientific theories correctly describe a mind-independent reality. Moreover, in forming such beliefs, they do not take themselves to be going beyond the bounds of science. If scientific activity continues, science will eventually succeed in providing an account of mind-independent reality that is at least approximately true. Many of the central claims of current scientific theories correctly describe reality. Clearly, and are pieces of scientific sociology, in that they express judgements about the attitudes of scientists towards their theories, while and express judgements about the extent to which science is able to discover the way the world is. and the ‘Sociological Theses’ and the ‘Non-Sociological Theses’.) In this paper, I shall discuss what Bas van Fraassen’s work has to tell us about these claims. I shall argue that at best, he has pointed to one important respect in which defenders of scientific realism may have been on the wrong track. Such defenders have, historically, attempted to provide decisive reasons for believing one or more of the above theses. Van Fraassen has given grounds for thinking that no such rationally compelling reasons are to be had. But since that hardly implies that anyone who subscribes to either the Sociological or Non-Sociological Theses is irrational, it follows that van Fraassen’s polemic fails to undermine scientific realism in any serious way. Correspondingly, I shall argue that van Fraassen’s defence of an alternative to scientific realism, his so-called ‘constructive empiricism’, has only limited success.